FML shape compact fluorescent 27watt lamp. 4 pin. Gx10q-4 base. 6500K. 10,000 Average life. Order Code: FML27/65. Full spectrum compact fluorescent lamp replacement bulb for use with preheat, rapid start and instant start lamp ballasts. Commonly used for reading lamps and floor lamps. For use with dozens of full spectrum lamp models including Adresso, Balanced Spectrum and Colux.